Earlier this week, GM dropped a new teaser video signaling the imminent arrival of a new 8.3L V8 Duramax diesel. Now, The General has announced output numbers.

General Motors has teased a new Duramax diesel 8.3-liter engine that it has dubbed “Mongoose.” GM’s teaser video took shots ...

If you like seeing impressive engine specs, look no further than GM's latest V8 Duramax, which seems to be aiming to leave the competition behind.

For 2027, the Silverado HD and Sierra HD also have higher tow ratings and finally switch to a more sophisticated steering ...

GM has confirmed its all-new Mongoose 8.3L Duramax turbodiesel V8, but one very important question remains: how much power ...

General Motors confirmed 1,230 pound-feet of twist from the Mongoose, specifically the 8.3-liter Duramax fitted to 2027 model year HD trucks ...

The largest among the Big Three in Detroit has released teaser footage of the much-awaited Megamax, which is actually codenamed Mongoose ...

GM also upgraded the gas V8 and the steering and brakes ...

GM’s 2027 Silverado HD and Sierra HD get an all-new 8.3L Duramax diesel, an upgraded 6.6L gas V8, and redesigned steering and braking systems.

The 8.3L Duramax Mongoose is built to beat Ford and Ram, but $6.50-a-gallon diesel makes the timing brutal for buyers.

You're currently following this author! Click to unsubscribe from email alerts. For years, the growl of a big, manly V8 engine had been fading from US auto assembly floors. No longer. A V8 is a gas ...

GM’s heavy duty trucks are getting some heavy metal for 2027. The Chevrolet Silverado HD and GMC Sierra HD are set for an update next year that’s going to include an all-new Duramax diesel engine ...